Determination of arsenic in vegetable samples by hydride generation atomic absorption spectrometry
Journal Article
·
· Journal of AOAC International
OSTI ID:443624
- Univ. of Granada (Spain)
A procedure is described for the determination of arsenic in vegetable samples by hydride generation atomic absorption spectrometry. The samples are mineralized in a microwave acid digestion bomb with nitric acid in the presence of small amounts of vanadium pentoxide. The determination of arsenic is made by the standard addition method. A certified reference sample is analyzed, and the result obtained agreed well with the certified value. The detection limit (dry weight) was about 0.020 {mu}g/g. Reproducibility relative standard deviations ranged from 6.45% at 0.152 {mu}g As/g to 8.31% at 0.059 {mu}g As/g. The concentrations of arsenic in vegetable samples ranged from 0.029 to 0.444 {mu}g/g (fresh weight). 24 refs., 4 tabs.
- OSTI ID:
- 443624
- Journal Information:
- Journal of AOAC International, Journal Name: Journal of AOAC International Journal Issue: 6 Vol. 75; ISSN JAINEE; ISSN 1060-3271
- Country of Publication:
- United States
- Language:
- English
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